So I went at you so I am sorry.
Such is the nature on discussion forums where people freely exchange thoughts and ideas.
Not a problem at all.
I was told that I was not saved because I do not speak in tongues and was baptised in the name of the Father, Son & Holy Spirit and not in the of Jesus only.
Non issue.
The Lord would like for us to take advantage of all the tools He has provided to His people but no where in scripture are we told that a person goes to hell if they don't speak in tongues. If you wanted to mess with them ask them to show you were in scripture where do we specifically see there are repercussions for not speaking in tongues and where specifically does the Lord say in His Word that not speak in tongues is a sin.
It's not in there, so they cannot answer from scripture and instead will answer from what they believe to be right which is fine until they start telling people others are required to follow what their personal conscience it leading them to believe which is what they are doing. (Kinda like the catholics will claim we are required to pray to Mary which is bunk because God's Word does not teach that)
It would be different if scripture specifically said not speaking in tongues is a sin or otherwise mentioned some judgement upon those not speaking in tongues which is not in the New Testament. So basically they are tying to push their denominational beliefs on you.
Matthew 28:19
Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
Acts 2:38
Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
We're supposed to do all things in the Name of Jesus so Peter is in line with Colossians 3:17 which does not do away with or superseded the instructions Jesus gave in Matthew 28:19
Colossians 3:17
And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by Him
You were baptized according to the instructions Jesus gave in Matthew 28:19 and if done in faith then the Lord accepts it.
If done in doubt, that would be a problem so don't doubt and instead accept what Jesus said in Matthew 28:19 and be done with it. You did what Jesus said, and that's the end of the discussion.
If need be, cut off the oneness pentecostals that are trying to sow doubt in to your life.
I went thru this as a young believer where I got baptized right after getting born again according to Matthew 28:19, then a few weeks later I came in contact with some oneness pentecostal people who told me I must get re-baptized in the Name of Jesus only.
Apparently they are cherry pickers (they have numerous issues actually) who refuse to acknowledge or accept what Jesus said in Matthew 28:19. So I wouldn't worry about it if I were you, just keep walking with the Lord with a clear conscience as you have been doing.
I stopped going to the oneness pentecostal church like 3 weeks after I started with them because they were just weird and freaky. I didn't know much about scripture back then as a baby Christian but on the inside I could tell something was not right with them so I went back to the church I had gotten saved in.
Years later I moved to a new area and was out visiting churches looking for a new church home and visited a oneness pentecostal and during the worship service the preacher came up and laid hands on me suddenly (not biblical) and then tried to push me over backwards to make it look like I was being "slain in the Spirit" (also not biblical)
Needless to say, they was the last time I hung out with the oneness pentecostal people.