Yes, you can make part payment.
You can reapply any time after your loan has been settled.
Yes. You can top up on your existing loan after you have made 50% payments on an existing loan without a default. You will also need to provide your updated bank statement and issue new postdated cheques.
Yes, you can. In as much as you are paying the total outstanding principal and interest at the time you are paying.
Yes, you can. Subject to maximum loan ceiling.
Yes, but this will be subject to additional interest charges, written instructions from you and review of documents showing ability to repay over an extended period.