SEB banklink (pangalink) specifics

Recently I wrote about Banklink(Pangalink) payment configuration with php. I want to add some specifics on SEB iPizza implementation.

Here is the working code for generating request to SEB

NOTE: I used in FORM tag attribute enctype=”multipart/form-data”. Request to SEB permanently returns error 500. Support team confirmed, that this issue is on their side and they are going to fix it in nearest future. So, just do not use this attribute in your FORM tag.