minus amount on my existing account will it continue

[#1]

i have just altered my phone to anytime calls and i was getting a minus £10.93 on my existing broadband a phone contract

will this dicount amount still be on my account? please let me know the phone change will start on the first of june 2020 

[#2]

@Saffy Changing your call package should not affect any other items on your contract, but I would check your next couple of bills carefully - very occasionally, this change can erroneously make the system think you have started a new contract. It doesn't happen that often, so don't worry too much.