TeleCheck Services review: Terrible company. Wrongly denied my check. And rude on phone.

I am 68 years young. I even ran an accounting department for years. This service is inaccurate. I paid by check at the vets with one checking account, which I opened just a few years ago. Then when I went to pay with another checking account that I have had for 25 years, I was denied. Embarrassing, yes. A 20 something year old told me DENIED with an attitude. Hey bud, I own two houses and plenty of assets. You are a receptionist. I paid by credit card (even though I brought my checks deliberately) then went to my bank they couldn't understand why they would use a 3rd party verification for a check. Said for credit cards, yes. And yes, plenty of funds in that account. I went back and told them MEDVET to be precise. Receptionist rude again, I asked to speak to supervisor. she was nice, but not much help. Call the tele check number. Nimnit chimes in "I told her to.". I said you are rude and no you did not, I would have right here. Supervisor said to be respectful. I said I have been to him all along, but he has an attitude, young generation yeah. Well. I got on the phone with Telecheck man did not understand English, sorry, true. Had to spell everything. Then he said after 15 minutes of h---LL with him. You are verified now; you meet the criteria don't write a check for 24 hrs. What? I asked how do you verify? No answer. I said this is an older checking account, yet you verified one that I have had for like 5 years no problem? No answer about their criteria. This company is awful and I never would've used them when I ran accounting department. I told them it is useless, just charge a fee for a bounced check. Ruined my day and I have three dogs that are sickly on top of this.