this company is fine, the client got the machine on time and runs a while without problems good job

Supplier didnt put brand motor I paid for Siemmens and he changed to Quipeng (chinese brand) and working volume of equipnent was only 20 liters not 30 liters as I Made contract I paid $400.00 for 220 volts motors and supplier only change inside conections from 380 to 220 volts, for me it is not correct After ALiBABA intervention the supplier refund $1200.00 for me should be more money but what can I do machine is far away here in Ecuador.