Received notification of this in my email and so gonna try them out. Not bad if you were planning on a dealer service anyway.
The Ts&Cs state the appointment must be in June but I spoke with 2 different people in service on the phone and they told me that it could be in May or June. Hopefully they make good on that promise but I guess if you're worried then just book it in June to be on the safe side. Only other note was that you need to "mention" the deal at time of booking. Seeing as it is a web booking only then the only way to do this is to include a comment in the notes at the end of the booking confirmation.
Can't comment on whether Denlo service is any good as I haven't used them before. I did notice the base rate of service for my Tiguan was about $40 more than my regular dealer (VW Chullora) so actual saving for me was $40 less than 20% off what I was going to pay.
From the email:
For the entire month of May, all online web-bookings will receive 20% off*
Whether you need a routine oil change or a major repair, our expert technicians are here to help. Click the Book Now button below to head to our easy online booking system and take advantage of this great offer.
*Valid from 1st of May 2023 – 30th of June 2023. Appointment must be within June and completed by the 30th of June. Only redeemable for services at the recommended time/mileage interval – parts and services included. Discount excludes any additional work carried out. Offer must be mentioned at the time of booking to redeem. For more information contact Denlo Volkswagen Service. Not to be used with any other offer. Denlo Volkswagen reserves the right to change or extend the offer.
PSA: if your car is under manufacturer warranty and you were told you need to have it serviced by the expensive dealer to maintain your warranty, you were told a lie.