How do you handle invalid VIES results?

[Mpix]

Hello! Pulling my hair out on this one.

We have a website where orders with a valid VAT number should remove the VAT. They should be created with the proper prices/taxes
We tested several modules and can get the actual business logic to work, as long as Vies returns proper data.

However, some member states have rate limits or maintenance periods, which means addresses can't be flagged as valid before order creation => created orders include taxes => the merchant has to jump through hoops to re-validate and trigger a new calculation of the order taxes/prices. The customers also receive the erroneous values.

Has anyone found a satisfactory solution to this?

• Which module do you use?
• What's your process?

I'll take any suggestions at this point. Thanks in advance!