客户的原话，未经修改

We moved 14 countries of QA signup testing over in a weekend. The compatibility endpoint meant we changed one constant and nothing else. Six months in, the only tickets we have opened were about invoices.

The refund behaviour is the whole reason we stayed. Previous provider kept 30 % on failed activations and called it a handling fee. Here a dead activation costs nothing and the credit is back before I have switched tabs.

Stock counters that are actually real. I can plan a 4,000-number run in Indonesia and know it will not stall at 900 because the number in the table was decorative.

Support answered a payment question at 03:40 on a Sunday, in Russian, with the transaction hash already looked up. That is not normal in this industry.

Success-rate badges per country changed how we buy. We stopped burning budget on markets where a service silently rejects the whole operator range.

Our agent stack calls the API directly with a scoped key. Webhook in, code out, no scraping, no headless browser. It took an afternoon.

Only real complaint: some small territories have thin stock, and you feel it at peak hours. To be fair the counter tells you before you buy.

Five years of invoices, zero disputes, zero surprise price changes on an existing order. Boring in the best possible way.