worst customer service

worst call center ever to deal with. my ER24 account was handed over on the mentioned call center to my surprise they already sending over threating sms that it will be handed over to legal department should i not make payment arrangement. i therefore made arrangements to pay the account but still i got the same threating sms i called and spoke to a consultant who said they will fix it. after few days I settled the account now am struggling to get paid up letter as its been 21 days since the account was paid in full mind you I made transfer payments instead of debit order. as am typing this am on a call with a lady who put me on hold to confirm my email address for the 28th time. you don't even deserve a single star rating on your services its the WORST!!!!!!!!