Incompetency. Incorrect statement amount.

I picked up 3 discrepancies on my statement which I raised with them on the 26th of Mar for them to rectify then Lucy sent me their stupid automated e-mail response (which is a total LIE). On the 1st Apr, she called me and asked that I pay what I agree with on the statement as they need time to rectify it. I paid on the same day. On the 8th, my partner comes to the flat and discovers that the electricity is cut off and only in our unit. I phone them and their answer is: there is no proof of payment on your account so the payment hasn't been allocated.That's when I loose it. What the **** is a proof of payment for when they can verify the transaction on their bank statement??? Do these idiots know a proof of payment CAN be ****d? So I send it to Lucy and ask her to contact the building manager and reconnect my electricity. She then sends me an e-mail to say its sorted out. Lo nd behold, I get to the flat and I'm still ****EN CUT OFF. I phone the building manager and he's just chilled and reconnects me after 2hours. My ****EN problem is that they made me suffer without electricity at the flat for their ****** incompetence! Someone must just shut down this company. Nu-Kerk 308 tenant.