Huawei service - TERRIBLE

Its almost 3 weeks since dropping my phone at Huawei Smartphones Melrose Arch Service Centre for a simple screen repair. They forgot to send the quote, I had to chase. I sent proof of payment last Monday, they did not acknowledge receipt. Its is now 7 working days later and still don't have a response from Hauwei. I have called several times and cannot get a straight answer and they cannot tell my why my phone is not repaired yet. Could have had the screen repaired while I wait in Fordsburg for R400 but made the mistake of buying into Hauwei Centre advertising promises. The response I received from the FB administrator is "Hello Kevin, we would really like to apologize for the service you have received. Please note that repair on your device began when the payment was received. We do not want to loose you as a customer due to this unforeseen event." Apart from not wanting to "loose" me ;) they are acknowledging that work commenced upon receipt of payment, which was Mon 5 March. This means we are now 7 working days into a 20min screen replacement. Despite numerous calls to their contact centre and comment to FB admin, I cannot get a straight answer as to why the inordinate delay and when i could actually get my device back. I clearly remember the value proposition that Hauwei pitched when they launched these service centres - positioning they clearly cannot defend. Fail!