Ensure you have verified Wirex account
Wirex verification is easy and only requires 2 documents. Read here for submission guidelines and steps.
Select the correct ‘Add Funds’ option availablefor  Russian Federation
Log into your account, select ‘Add Funds’ then click ‘Alternative Payments’. Next, under ‘Select Service’, pick ‘Qiwi’. Wirex will not charge for this service; however you will incur a small fee of 4.00% through Qiwi to use their platform.
Make a payment from Qiwi
You will be directed to a Qiwi page. Follow the instructions to send a payment to your card account. Upon successful payment, the funds will be reflected within moments in your Wirex card balance. Success — you have used Qiwi to add funds to your card!