Inverter and batterie broken

Just about 2 years ago, I purchased a 10kWh solar power inverter with 2 lithium batteries from Power Africa. Unfortunately, my experience with their products and customer service has been extremely disappointing.After just over a year, my inverter blew out. It took Power Africa six months to fix it, leaving me without an inverter during this entire period. Now, one of my batteries won't charge to 100% and seems to be broken. Despite struggling for a month to get answers, no one has come back to me with a solution.Overall, my experience with Power Africa has been frustrating and unsatisfactory. I expected much better reliability and customer support for such an important investment.