One thing I'd like to add, on the time of booking, the price of the car (excluding of ST & FED) was 1,642,694 (17% ST on PBO was mentioned 286,239). They revised their prices in July, 2021 i.e. 1,626,667 (17% ST on new invoice is 276,533) and used this new car price in my invoice and deducted the sales 17%. If you are saying they've already paid the sales tax on the time of issuing PBO, how they are going to settle this with FBR. They are just making it a mess.
Customer care of pak Suzuki said this. And they were also surprised as they were saying that Government of Pakistan advised them to do so( don't know the reality). At the time of booking, they mentioned the pak Suzuki rule for customers: " If car prices will be increased, we'll never charge you extra, if reduced prices will be refunded, this is pak Suzuki rule for their customers"