Your order is coming up shortly.

1)The field on the form that ask me about my marital status.
2)Gather evidence to proof that I should get reimbursement for delayed luggage.
3)To strengthen my claim that I should be compensated.
4)Your order is coming up shortly.
5) How much labor cost do you think it would be to fix my car if its less than an hour?
6) Is there a minimum labor fee charge to have my car check??

Are the above sentences correct?

1)The field on the form that ask me about my marital status. <-- is not a complete context and cannot be used as a standalone sentence. In addition:
You need ‘asks’.
A more natural alternative would be:
The section about marital status.

2)Gather evidence to proof that I should get reimbursement for delayed luggage. <-- is not a complete context and cannot be used as a standalone sentence. In addition:
You need ‘prove’.
A more natural alternative would be:
Obtain proof that I should be reimbursed for the luggage delay.

3)To strengthen my claim that I should be compensated. <-- is not a complete context and cannot be used as a standalone sentence. In addition:
A more natural alternative would be:
To strengthen the case for compensation.

4)Your order is coming up shortly. <-- OK

  1. How much labor cost do you think it would be to fix my car if its less than an hour?
    You need to recast that:
    What do you think would be the labour costs to fix my car if it takes less than an hour?
    A more natural alternative would be:
    What do you think the labour charges would be to fix my car if it took less than an hour?

  2. Is there a minimum labor fee charge to have my car check??
    You need ‘checked’ and do not need both ‘fee’ and ‘charge’.
    A more natural alternative would be:
    Is there a minimum labour fee to have my car checked over?