Supplier denies problem with goods

Bought Efergy Engage hub kit and kept on getting error \MAC address you entered appears to already be associated with another account."<br> 1. Restarted the process several times with same message - <br> 2. Googled and referred to all resources I could get my hands on and could not find any resolution<br> 3. Phoned Efergy UK help line and after numerous option and long wait (at my cost) they indicated that they no longer provide telephonic support<br> 4. I then emailed specific help resource and general help resource - no response<br> 5. Supplier engaged and disputed any problem with unit<br> 6. I bought the Elite Classic and Engage hub unit from different supplier later in day. I got both set up in few minutes. No problem to detect hub and install sensors.<br> 7. The unit was supp**** with the seals on batteries broken - my only assumption that it has been used before<br> 8. The error message indicates that the unit has been assigned to a different account. We only have one account and it is not listed in this account.<br> <br> My conclusion is:<br> 1. The unit probably does work<br> 2. Unit was paired with other user account and returned by such user<br> 3. The supplier either need to \""unpair\"" it or supply different unit"""