Best Standby Generator Installs in Houston TX

I called Armando/TJAT as a referral from my pool cleaner for some fountain electrical work in Jan '22. Armando came quickly and diagnosed the problem. I paid him for the recommend repair . It costs around $1200. I asked for an invoice and it was never sent. It wasn't a big deal because I had our text exchange and Zelle sent as proof of payment.The beginning of April '22 it was having the same issues. I called him back and he told me that I needed a new pump. I asked was there a warranty because I paid for a new pump in January? He said a new pump was never installed. I sent him screenshots of the January conversation. No reply since then after I have called repeatedly....I had another fountain repair person come who verified that no new pump was installed.Be wary of Armando/TJAT....