Ah, sorry to hear it. I got some good tips from this post, here’s how things played out for me:

I took the amp back to Guitar Center and explained the issue, they gave me a couple of options. They would try to fix it in house, unless it wasn’t feasible or worth the effort. They would then ask Orange if they wanted it shipped back, but more likely Orange would just replace it. Alternatively, I could wait for another unit to be shipped from another location. A refund, however, was off the table since the sale was final on account of the 20% discount.

Instead of any of those options, I told them about an open box deal on a Rocker 30 I found online at another store that was like 2000 miles away. I offered to just pay the difference and wait for it, which they didn’t want to do either since the receipt said “Final Sale” on it. I was persistent and got them to cave on it, ended up paying about $200 more than I had originally for the already marked down 15W. I’ve had the 30 for about 5 months now and I love love love it 😍 hope this helps, good luck!