Bad service and poor communication

I booked my sunglasses in at the end of November for rubber repairs. I phoned them in middle of January to find out what was going on because of lack of feedback. They promised me that the glasses was almost finished and that it would be delivered before the end of January. When I phoned by the end of January they were still busy with the glasses. When phoning them again on 5/2/16 they told me that the glasses would be delivered that day. When I phoned them again in the afternoon to find out what time it would arrive they told me that it's only leaving Cape Town now and that I would get it early the following week. The glasses was only delivered on 12/2/16 late the afternoon. Upon receiving of the glasses I inspected it and found that the rubbers of the one pair doesn't fit properly and the other pair of sunglasses temples was bent so badly that the glasses is not usable anymore. I phoned them on 15/2/16 to explain to them what was going on and they promised that they would send the couriers that day to come and collect. wednesday I had to phone them to find out what is going on and they promised to keep me informed. Glasses was only collected 18/2/16 at 16:00