payments: refactor checking, returning username is empty
payments: refactor checking, returning username is empty

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