Very poor customer service

Very very poor service , I requested a settlement on my account and they gave me a figure. After settling my account I then requested a confirmation that the account had been closed with no success . When I phoned the other day I was advised that the amount quoted was a wrong amount. I had to pay an extra 1500 on the account. After the payment had been made , I phoned in to confirm the account closere and I was advices that Telekom owes me 1500 becouse I paid them more money.

Till today am making endless phone calls to them with no success and my account is still active.

Am so frustrated with the service becouse no one seems to be taking my issue seriously.