I have unbelievable problems with the unkind custo...

I have unbelievable problems with the unkind customer service. A lot goes wrong and sometimes, I admit, my own fault. They make promises that are not fulfilled. Mw 1 says this hr 2 says that. Sometimes 5 to 6 phone calls to solve cases and another story.
App does not work regularly and many errors / or slowness is dealt with with backlog on the administration
Coatings etc are okay but it may cost some.