Can someone explain this tweet as if I’m stupid?

I understand what Man Picc’s through platforms are, but unsure what exactly this tweet means if the ticket was booked from Stockport?

Can someone explain it for me as I feel very stupid!

I understand what Man Picc’s through platforms are, but unsure what exactly this tweet means if the ticket was booked from Stockport?

Can someone explain it for me as I feel very stupid!