Natrent property

I have rented property from Natrent from July 2018 till July 2019. I paid a deposit of R10 750.00 plus the 1st months rent in advance of R7200.00. They are insisting I paid R9850.00? I cannot understand this. I paid a key deposit of R650.00 and returned all the keys and remote but did not get this back. I paid an electricity deposit of R1000.00 which I understand would go towards the last month's bill as electricity , water and sewer was paid in arrears. They are charging me R850.00 for kitchen taps which I also do not understand as I fixed the taps. After many attempts to get them to fix it but in vain. Their maintenance person was at the unit and took pictures of the broken taps which was due to wear and tear but no one ever got back to me. On vacation the agent inspected the house and was happy with the kitchen taps. I have attached a copy of the lease, the breakdown of the deposit refund as well as the checklist I completed on my own. No one inspected the property with me when I moved in. Please assist on getting my deposit back please. The property in question is No. 17 Avalon, Eyenham Road, Winchester Hills, Johannesburg South.