Can I use a family member/relatives bank statement to demonstrate my finances?

If you are using funds held in a relative's account, they must be your parent(s) or legal guardian(s). You will also have to provide proof of relationship such as an original birth certificate or adoption certificate. In addition to the above you must also submit a letter from your parent(s) or legal guardian(s) confirming you have consent to use the funds held in their account. For further information, please visit the UKVI website.