Poor customer service

I reached out to Netstar on Wednesday, the 22nd of March. The consultant that was assisting me said a new tracker needs to be fitted on my car. To which she said she'll book it in for Saturday, 25th March 2023. We agreed on the new contract, & she said she'll email me the address of where I need to take my car. 2 days later, still no word from her. I reach out to Netstar, and I'm told they're fully booked. I specifically picked the weekend because I travel during the week. I've canceled my plans in order to have this fitment done. Reference number: CAS-***Y2B0 The email she sent with a link to track fitment progress doesn't work.