Add none handling in mobilepay-payments

[krestenlaust]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.45%. Comparing base (160e3a2) to head (6ac6d37).

Additional details and impacted files

@@           Coverage Diff           @@
##             next     #403   +/-   ##
=======================================
  Coverage   53.45%   53.45%           
=======================================
  Files          33       33           
  Lines        4548     4548           
  Branches      267      267           
=======================================
  Hits         2431     2431           
  Misses       2067     2067           
  Partials       50       50           

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[krestenlaust]

I've implemented a crude solution as I understood it now.

P.s. do you know why black keeps failing, even though I can't find any format suggestions locally @falkecarlsen ? I think it might be whitespace related, I tried fixing it in #408