Except when otherwise provided for in the contract, the relationship between the surety and the debtors in respect to the following matters shall be as follows:
(a) The surety shall cause a person who is under obligation to repay a loan or fulfill a liability according to the contract.
(b) In case the debtor has supplied any property or security to the surety in consideration of the guarantee provided by him/her while obtaining the loan or accepting a liability, the surety may not mortgage, sell, or otherwise transfer the title, thereto without the consent of the debtor.
(c) In case a guarantee has been provided in consideration of any loan obtained or liability accepted for any specific purpose, the objectives, nature or terms and conditions of that loan or liability may not be changed without the consent of the surety.