POOR AND UNPROFESSIONAL SERVICE!!!!! RUDENESS!!

I have had poor service from Cycle Lab N1 city since my first purchae. The latest being me asking someone to take my bicycle for a booked service Thursday 17 April. I called twice, spoke with ALex to advise i will pick up by bicycle myself as soon as i get the confirmation that the service has been completed. I CALLED TWICE TO MAKE SURE THAT THEY UNDERSTAND I WILL PICK UP MY OWN BICYCLE. Alex assured me that only my details is on the system and they will only hand over my bicycle to me. Alex actually got very upset and unprofessional for me for calling twice to make sure that they dont hand-over MY bicycle to someone els. Saturday morning, 19 April i called to find out whether my bicycle is ready for collection by myself as arranged and (if memory serves me right) Wayne answered and said he'll call me back because he dont see my bicycle and usually the guys do not update the job cards. An hour later and no call back. I then called myself and he said my bicycle has been booked out and Alex will give me a call. Alex then called me and told me my bicycle has been collected by the guy who dropped it, who is not the owner and they dont have his details. Meaning he ignored my request that i will collect MY OWN BIC. He got VERY RUDE WITH ME INSISTING THAT THIS GUY IS MY PARTNER AND HE HAS NOTHING TO DO WITH MY PERSONAL ISSUES!!! SO RUDE AND UNPROFESSIONAL! He promised to send me confirmation about service happening on 5 May and they will call me immediately and up until now he has not sent me any confirmation!!!!!! THESE PEOPLE ARE SO UNPROFESSIONAL AND DONT TAKE ANY RESPONSIBILITY FOR THEIR MISTAKE!!!!!