RENTOZA BAD SERVICE

I AM HAVING A VERY BAD EXPERIENCE WITH RENTOZA. THEY LOCKED THE PHONE I GOT FROM THEM WHICH AM PAYING SUBSCRIPTION FOR LAST WEEK THURSDAY. I CONTACTED THEM VIA MY WORK EMAIL SINCE YOU CAN NOT CALL THEM, ALL THEIR NUMBERS YOU FIND ON GOOGLE THEY ARE NOT WORKING, IN THIS SIX DAYS I DEALT WITH 3 DIFFERENT PEOPLE FROM RENTOZA AND NON OF THEM COULD HELP ME, MIND YOU I HAVE PAID THE PHONE A DAY LATER THEY LOCKED THE PHONE AND TOLD ME I DID NOT PAY, SATURDAY I SENT THEM PROOF OF PAYMENT, STILL THEY DID NOT OPEN THE PHONE, FOLLOWED UP WITH COUPLE OF EMAILS WHICH THEY TOOK LONG TO RESPOND TO. SUNDAY I STILL HAD A LOCKED DEVICE I CAME BACK MONDAY SENT ANOTHER COUPLE OF EMAILS, THEY TOOK LONG TO RESPOND TO , AND SENT ME AN EMAIL SAYING THE DEVICE IS UNLOCKED, BUT WHEN I CHECKED THE DEVICE IS STILL LOCKED, I WAS TOLD TO CONNECT TO INTERNET AND FOLLOW CERTAIN STEPS, THOSE STEPS ARE NOT WORKING, THEY KNOW VERY WELL BECAUSE THIS IS NOT THE FIRST TIME THEY LOCKED THE PHONE, ALL THE STEPS THEY SAY I MUST FOLLOW AFTER LOCKING THE PHONE DO NOT WORK, I WAS TOLD TO CONNECT TO INTERNET AGAIN, AND I ASKED HOW? BECAUSE YOU CAN'T DO NOTHING WITH THE LOCKED DEVICE, LATER THEY SAID I MUST SEND PASSKEY, I SENT IT YESTERDAY 17:04 PM, STILL THE PHONE WAS NOT OPEN, I CAME BACK THIS MORNING I WAS ASKED TO SEND THE PASSKEY AGAIN, WHICH I SENT YESTERDAY, STILL THE PHONE IS LOCKED. AND I WONDER HOW DID THEY OPEN THE PHONE FROM THE PAST TIMES THE LOCKED IT BECAUSE THIS IS NOT THE FIRST TIME THEY LOCKING THE PHONE, AND THEY MANAGED TO OPEN IT WITHOUT HAVING TO ASK ME TO DO ALL THESE THINGS, ALL IN ALL THEIR SERVICE SUCKS, RENTOZA SERVICE IS MORE THAN WORSE, ITS FRUSTRATING. MIND YOU I NEED THIS PHONE BECAUSE I USE IT FOR BUSINESS. I HAVE NEVER BEEN THIS FRUSTRATED IN MY WHOLE LIFE EVER. MY ADVICE TO SOMEONE WHO IS STILL THINKING OF USING THEM, DO NOT EVEN START.