Worst service

Worst company and worst service delivery. We ordered a shutter door through Builders Warehouse whose staff advised us R2000 per sq meter. Paid 50% deposit Finishing touches' guys came to measure, quote received by email, price R2800 per sq meter which is a big difference. We called so the manager and us came to agreement to meet half way and we paid about R13 000 for the door but then they want full payment before manufacturing it! We paid in full. Builders advised us originally that it will take between 10 and 15 working days but now we were told 21 days. Well after 4 weeks still nothing then we were tod problems wit manufacturing. Tjey then supp**** us wit installation date but suddenly came to our house so that we can choose our colour. The door were installed abour 7 weeks after payment. They took the whole day to install but did nit have all the parts and have to come back. Came back after two weeks and told us now they will have to come back again! Still not finished!