We had been with opus energy for many yrs. for our small business supplier. In 2019 we noticed our bills creeping up. when I spoke to Opus they informed me we were out of contract. I asked what we were paying and then what deal could be offered to renew our contract with them. I informed the employee I would check online first, offers from other suppliers. I found a broker who searched and found a brilliant tariff that just what we wanted with....Guess who? OPUS. I went into a verbal contract then and there to go ahead with Opus. This was going smoothly so I thought. I then receive a call from the broker. There was a problem and they couldn't complete our new contract. I phoned Opus to check what was wrong. We discovered a problem with an incorrect site address. Why after all these yrs was it not detected before?? I was told I had to contact Royal Mail and sort the problem myself. I asked to speak to a supervisor and was told they don't take calls. I called Opus back and asked to speak to a supervisor and was put through straight away. The supervisor stated it was not my error but for OPUS to rectify. I was assured the error would be sorted promptly, so we could complete our new contract. Shortly after my husband received a call from Opus misleading him into a tariff we had not discussed and for a 4yr contract. I contacted Opus to confront them of their underhanded sneaky business conduct. Only to be told ' sorry your husband agreed to it' We are now stuck in a contract for 4yrs. on a very bad tariff. OPUS have cost us money. There're not to be trusted! The site address has now been rectified . But it took OPUS 6 months. Its just not good enough. We were loyal customers for yrs with OPUS. But I would not recommend them to anyone in the future.