Gizzu is not a quality product

I bought a GPS500 power bank, spent R8000 on this unit. After 18 months the unit has a product fault. The response from Syntech is weak and they take no responsibility for their product failures. The reply was, sorry there is nothing we can do. No spares nothing. So I have an R8000 product that does not work and Syntech cannot offer any assistance what so ever. They are not a consumer centric company, knowingly selling unsupported products with no after sales service. I should have bought the Eco Flow brand which is superiors to the gizzu. Do not waste your time or money on Syntech, they don't care about thier customers or the poor quality products they flood into the market.