Convert Speed Camera update to premium services

PeterFl Registered Users Posts: 2
New Seeker
edited July 5 in TomTom Services
I accidentally purchased Speed Camera Updates for €29.99 for my TomTom Go, but wanted the Premium services for €39.99. Does anyone know if I can convert that with an additional €10.
I've already done it through TomTom's help, but can't get there, which is frustrating. Please comment, regards, Peter

Mod edit: Machine translated [Dutch]