Poor service and no sense of emergency (TAT)

I logged a call on the 14th of June and I was told that due to the long weekend my request will delay and I understood. I was expecting a technician to come on Tuesday but instead I received a call on Wednesday to confirm receipt of the invoice they sent and I made the payment for the callout fee immediately. I had to call the following day Thursday to check if they received the POP and only then did they check. They then decided they will send the technician on Monday, that time my laundry is pilling up. Had they made an exception to send a technician over the weekend they would have seen that my washing machine needed a new door lock and ordered it, instead they took their sweet time and as things stand I'm still waiting for confirmation that it has been ordered on top of that wait again for the technician to come and do the job. There's clearly no TAT and no one seems to take accountability for the inconvenience caused to customers who pay. It's two weeks now waiting for the service.