i do not understand why you did not cancel it when you are not satisfied with the service. Termination of unifi while under contract is RM500 if I am not mistaken.

Now, you will need to pay the full 2700 and maybe more. TM will definitely blacklist you in their own network. You won't be able to apply for any services from TM. However, not sure if this blacklist will apply to other telcos. Most probably it will.

What I would suggest you do is try to appeal to TM with this account. Tell them you didn't used it after 3 months and see if they are willing to discount your outstanding amount. If they reduce the amount to something you are okay with then at least you can settle it and get on with your live. Else you can just continue to live under somebody else's name whenever you need telco services.

you forever won't need those things? or you already in too much debt and been running away from them? is live just about running away from problems or confronting them and settle them? You are going to teach your kids to run away from problems too?