Virtual credit card generator accessible to non-US-based citizens?

I'm an Irish citizen currently living in Israel.

I'm looking for a specific payments solution for my freelance business but .. so far haven't found what I'm looking for.

I work as a marketing consultant and commonly undertake expenses on behalf of clients. I have a business credit card for this purpose.

Occasionally expenses can be recurrent and substantial and .... freelancing being freelancing relationships end and clients don't always remember to replace my card.

What would be ideal to …

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