Bad and slow service

I took my Samsung S5 for a screen repair on 12 June.<br> I called on 16 June and was told by Innocent that they are waiting for stock, I must call again on 19 June to follow up. I did phone again on 19 June and was told again, that they are still waiting for stock. I phones again on 22 June and again still no stock, I asked to speak to the manager because no one can tell me when their stock will arrive and as usual, he was not in and I left a message with innocent for him to call me back. He did not call, so I phoned again on 25 June and then again on 26 June. Still no stock, Innocent said she did give the manager the message she does not know why he did not return my call. I asked to speak to him again, and yet again he was not there.<br> I need to know, when will the stock eventually arrive, and no one can tell me. All they say is that they are also waiting, but no one cares to follow up.