Refund Unreceived Truck Simulator Ultimate In-App Purchases

I purchased a monthly VIP Ultimate subscription for $1 in the Truck Simulator: Ultimate game today around 11:50 AM. Although the 250,000 in-game currency and the truck listed in the subscription details were supposed to be added to my account, I never received these items.

Even though my payment was successfully processed and the subscription appears active, I cannot enjoy the benefits the VIP membership is supposed to provide. I demand that the items I paid for be fully credited to my account or, if possible, that a refund be issued for this bugged transaction.

I request that this issue be investigated and resolved as soon as possible, and that I be kept informed of the outcome.