[IkmoIkmo]

A 20-30x increase in costs being a problem for your business isn't indicative of being in an unhealthy low-margin business per se, quite the opposite. If you were operating in a 95% profit margin industry, which is an insanely generous hypothetical, increasing the 5% cost component by 20-30x would destroy you overnight.

This is what happened to OP, and they were able to switch to haf a dozen competitors at a fraction of the price with almost equivalent service offerings for their use-case. The notion they have a fundamentally unworkable business model doesn't apply here.