No answer from cancellations when trying to close the account

I have paid my account in full on the self service site, i have sent a mail to cancellations and i have been on the line for and hour just waiting for cancellations department to answer their phones, clearly they taking early lunch or dont want to answer to complete the request of the client and reading all the comments in regards to RCS not closing the accounts and people struggle with this company to close the account seems real now.. i want this resolved or i will contact the onbudsman today... i will also now go to makro themselves and someone has to get this resolved or i will be reporting this to the onbudsman