This is not favorable to the customer but it is a reality all over the world right now not just you or just suzuki cars.
There is chip shortage, general shortage of parts, shortage of shipping containers.
Companies in Pakistan are like this, they wont give an exact time because they cannot guarantee themselves when they will get the parts delivered and there can be any issues, earthquake, a pandemic like covid etc etc .To secure themselves legally they mentioned it as tentative delivery not confirmed delivery.
As for the person who got his car earlier there can be a number of factors like color. version and connections as well. It happens they give priority to others who are filling their pockets. This happens at showroom level not company level. It is impossible to prove so issue still exists.
As per terms and condition you agreed to the 10% deduction sadly. Again companies legally secure themselves.
Government has introduced only 1 law/condition/rule which states that if your car is delivered after 60 days after you made full payment they have to pay you compensation.
