payment: improve `PaymentForm` comments
payment: improve `PaymentForm` comments

koding/koding,acbodine/koding,mertaytore/koding,alex-ionochkin/koding,sinan/koding,alex-ionochkin/koding,kwagdy/koding-1,cihangir/koding,usirin/koding,drewsetski/koding,andrewjcasal/koding,rjeczalik/koding,mertaytore/koding,drewsetski/koding,koding/koding,alex-ionochkin/koding,sinan/koding,jack89129/koding,jack89129/koding,szkl/koding,kwagdy/koding-1,szkl/koding,rjeczalik/koding,cihangir/koding,sinan/koding,szkl/koding,andrewjcasal/koding,usirin/koding,rjeczalik/koding,kwagdy/koding-1,cihangir/koding,jack89129/koding,gokmen/koding,mertaytore/koding,acbodine/koding,gokmen/koding,andrewjcasal/koding,andrewjcasal/koding,usirin/koding,usirin/koding,andrewjcasal/koding,kwagdy/koding-1,drewsetski/koding,usirin/koding,koding/koding,mertaytore/koding,szkl/koding,gokmen/koding,koding/koding,drewsetski/koding,cihangir/koding,mertaytore/koding,mertaytore/koding,jack89129/koding,acbodine/koding,andrewjcasal/koding,mertaytore/koding,gokmen/koding,szkl/koding,sinan/koding,acbodine/koding,drewsetski/koding,andrewjcasal/koding,gokmen/koding,jack89129/koding,koding/koding,kwagdy/koding-1,drewsetski/koding,gokmen/koding,rjeczalik/koding,jack89129/koding,acbodine/koding,alex-ionochkin/koding,rjeczalik/koding,jack89129/koding,sinan/koding,rjeczalik/koding,rjeczalik/koding,szkl/koding,alex-ionochkin/koding,gokmen/koding,usirin/koding,cihangir/koding,usirin/koding,koding/koding,alex-ionochkin/koding,acbodine/koding,alex-ionochkin/koding,szkl/koding,szkl/koding,jack89129/koding,drewsetski/koding,sinan/koding,sinan/koding,mertaytore/koding,alex-ionochkin/koding,usirin/koding,cihangir/koding,cihangir/koding,kwagdy/koding-1,acbodine/koding,kwagdy/koding-1,kwagdy/koding-1,cihangir/koding,koding/koding,andrewjcasal/koding,drewsetski/koding,acbodine/koding,sinan/koding,koding/koding,gokmen/koding,rjeczalik/koding