Unfortunately the second time I received far fewer tokens than I sent. Meter Bridge says that this is due to the AMPL token. The AMPL team wash their hands of it and say that they have no influence. For me they are fucking scammers.
What exactly are they telling you? Do you know how AMPL works? How long is the bridging process happened and at what time? Losing 800 USD sounds like a lot if it is just because of rebase unless you're trading a lot of money.
I've been following and participating in their community for a while, and I don't think they've ever scammed people. Most of the time people just don't understand how to use their token.