AFASIK you can to book using Tesco points you can only do it via telephone after you have got your voucher code from Tesco so you can book fairly stress free
I am disabled and this next trip we are taking two vehicles as we are going to the static with loads of gear so I requested that Steph's car was in behind the motorhome in the single level cars - no problem just remind the operator on the kiosk as well I was told
We was always told you have to pay for dogs, only voucher codes for the vehicles, when we decided to loose a crossing one year the pet fee was refuned.
When we use to do Harwich to the hook we booked club class and meals with Stena using Tesco vouchers. Bob.