Bad service by Blue Label Connect

I wish to state my frustration regarding the service provided by Blue label connect. They have booked my device for repairs a month ago and up to today they have not communicated with me and the maximum period i was promised to have the device repaired was within 21 days and the period has lapsed. Furthermore what angers me the most is the fact that when i call in to have the matter escalated i get no joy as i am being told that they have to wait for the their supplier to advice them of the progress they can't call in to escalate my issue. Blue Label contact number is ***