Poor customer service

Shocking service from Stor-Age Silverlakes We are renting a locker due to home renovations, the sales person did not add our details correctly on the system when we signed up. The debit order didn’t come off, we followed up and were informed to pay , which we did. Then we received numerous calls from their financial department demanding payment, the payment was made, we went to retrieve something from the locker and it was locked We called and emailed to confirm what is going on, we were told there was an admin delay and the locker is now open. We went a few days later and still no access to our locker we have paid for!!!! No on answers the telephone to assist us.