I had a 315 pound experience about online slip.
First what happend.
I recieved online slip in japanese through email. I gathered ,
translate and print them on company letter head paper and asked my employer to sign and seal them and to make sure everything I put a cover letter as work reference summarizing my salary.
Just I amke mistake and I wrote an explanatin sentence in exceptional consideration column that these slips are reprint of japanese online slip.
But the case wroker denied my case saying that I had claimed that
I cannot provide original wage slip and I should have put japanese wage slip together with english translation or get confirmation from my employer that wage slips are issued only online and in Japnese and ask for specail consideration togehter with a letter.
So I think when you are submitting online wage slips may be you should put a cover letter from employer stating about these wage slips are print of online wage slips and employer doesnt issue other type of wage slips.
I had ask for a review stating that in computer era, original wage slip doesnt have any meaning other than originally issued by employer wage slips.I will inform you about futher progress