To me it sounded very much like Limburgs dialect (specifically Kerkraads dialect) "adieë wa" (only first part, but sometimes the second part is omitted anyway) [1]
English Wikipedia also has an entry for the company Adyen, btw [2].
[1] https://nl.wikipedia.org/wiki/Groet_(etiquette)
[2] https://en.wikipedia.org/wiki/Adyen