Санкционное ограничение не распространяется на резидентов ЕС. Если владелец счета резидент России, то договориться вряд ли возможно на размер счета более 100к.

Если в банк предоставлена эта информация, то тогда ограничения в 100к не должны касаться

10. Should the prohibition to accept deposits exceeding a total of EUR 100 000 from Russian nationals in Article 5b of Council Regulation 833/2014 apply to deposits made by Russian nationals residing in a third country (e.g. the US)?

Last update: 12 October 2022

The prohibition in Article 5b applies to deposits made by Russian nationals wherever they reside, unless they have a temporary or permanent residence permit in a Member State, a country member of the European Economic Area or Switzerland, or the nationality of one of these States.