Portable Electric Balloon Inflator Pump with Timer & Rechargeable Battery - Fast Balloon Blower for Party Decorations, Birthday Events, Wedding Supplies & Holiday Celebrations

I purchased this item on July 28, received it fine. Within a day, the electronics started to ignore the timer and display random numbers on the screen. I sent it back for a replacement which came fast. Sent the bad unit back immediately. So far so good. Filling balloons last night and the timer went haywire again and didn't allow me to set the timer so my balloons would be uniform in size. The warranty says 30 days from date of purchase. Since mine failed again, less than 60 days from receiving the replacement, would seller be willing to extend the warranty on this item to hopefully receive one that functions long term? Thank for reading.Update: The process for refunding the entire purchase price was great and fair. Didn't give me any resistance after I presented my experience. I love the pump and will order it again right away. Helping a buyer to be satisfied and fell good might even be better than getting if right the first time. I would give a 6 star rating if possible because this problem could have been negative.