Bad Service at Huawei Service Center Melrose Arch.

I took my Huawei phone to repair a cracked screen to the Huawei Service Center at Melrose Arch. I have never experience such bad service in my life. It took them 2 days just to send a cost calculation and another 3 days after payment to let you know they have received payment and will do repairs. When I went to collect my phone, the screen was replaced, but their was a black spot on the bottom corner of the phone. They took my phone back in and told me to come back in 2 -3 working days and they assured me my phone will be there. When I came back after 2-3 working days my phone aren't there and they don't know when I will receive my phone. You can't phone them, because they never answer their phones. When I was there to collect my phone - I was sitting there just to get the person who were supposed to help me to pay attention to me. He was sorting other mishaps out that had me waiting for ever and just sitting there with nothing happening. I had to ask another consultant just to help me, so that my phone can be booked backed in. It takes them 7 working days to replace a screen and still there is a defect on the new screen. When you ask them why their service are so bad then just get a no care attitude. Now on my tracking number it showed I have received my phone and their is no way to when my phone will eventually be ready. I think the phone is a good product, but their after-sales services are very bad.