Truck Simulator Ultimate Glitch Fails to Deliver VIP Rewards and Purchased Vehicles

I made in-app purchases in Truck Simulator: Ultimate by Zuuks Games on my Vivo V60 Lite device. On July 24, I purchased VIP Ultimate, but the promised 250,000 in-game cash and truck included with the VIP tier were never credited to my account. Today, around 7:47 PM, I bought a Volvo truck from the in-game used market for 700,000 in-game currency; although the funds were deducted from my balance, the truck was not added to my garage.

I can clearly see under my Google Play subscriptions that my VIP Ultimate subscription is active, along with the next billing date and fee listed. Despite this, neither the money and truck promised under the VIP perks nor the Volvo truck I bought from the used market today have been delivered to me. Since I do not know how to contact support in-app or via email, my issue remains unresolved.

Because of this issue, I demand that the promised 250,000 in-game cash and truck from my VIP purchase be credited to my account in full, and that either the Volvo truck purchased today for 700,000 in-game currency or the spent currency itself be restored. I request that my losses regarding these paid transactions be resolved as soon as possible.