VortexDirect

We purchased an RV cover with a 3 year warranty. It was destroyed before 2 years, so I emailed and was told they would honor the replacement warranty. However, when I returned it a few months later, they said they had discontinued the item so were refunding me 1/3 of the original cost since I had owned it 2 of the 3 years. How is this a full warranty? The substitution item is 50% more expensive than the original.