* feat(core-flows): create or update payment collections in RMA flows * chore: change ui to pick payment link from unpaid payment collection * Apply suggestions from code review Co-authored-by: Carlos R. L. Rodrigues <37986729+carlos-r-l-rodrigues@users.noreply.github.com> * chore: fix mathbn --------- Co-authored-by: Carlos R. L. Rodrigues <37986729+carlos-r-l-rodrigues@users.noreply.github.com>