Omega Inverter Nonsense

Bought a Omega Inverter at Makro, the thing just stopped working after about 10 times of use. Turns out it had a 6 month warranty. "We will send it to the supplier to see if they can repair". Guess what, got 2 inverters, not mine and not working, send them back only to be told mine cannot be found. The supplier then tells me that they sell the returned inverters that were fixed. I know mine was fixed and sold, although I have no physical evidence. So disappointed in Makro for buying this piece of...... And trying to sell it to the public that keeps on supporting them. I will never by from Makro again. Supplier tells me that they sold this to Makro and this what up to par with Makro's standards. I guess that is what you get when you do not pay more to have quality.