SOLVED:
- Called EE and told them straight that it was a problem with banding. Insisted that i was transferred to the relevant department ("fault management department"). Insist that they reset your line and after much pestering i finally got transferred to level 2 and they removed the banding and the problem was solved
The amount of trouble and hassle to get a simple thing like this is ridiculous.
TIP for anyone experiencing the same problem - be pushy, don't let the customer service scripts bully you, don't even let them call you back. Use key words like "banding " "fault management department" "escalate my matter" and hopefully you can get it done
Thanks for the support!