Need advice on property settlement issues

Hi,

I have recently settled my off the plan property. I discovered there are 2 major issues with the unit after I settled.

1. My car park size decreased from the original plan 17sqm to approx. 13sqm. I have tried to address this issue with the developer but no avail. The DP (Deposited Plans) is also incorrect as it contains the original size of 17sqm. I am concern this may affect the potential resale of my property.

2. The UE (Unit Entitlement) for my apartment appears to be incorrect, as if a mistake was made at lodgement. It seems like they have swapped my UE with the unit next to me. I understand that the plan has been registered and rectifying this may be difficult. However, I need to pay a few hundreds more in each quarter for Strata now due to this mistake. I shouldn’t be responsible and paying for their mistake. This is not what I signed up for in the original contract.

I have already spoken to my solicitor about this but he wouldn’t do anything. I was told by my Strata manager that there is nothing I can do to challenge the developer. The Strata manager said there were people who tried in the past and spent over $200k to sue them but still failed. I am just wondering if anyone in here who had similar experience in the past and can offer advice on what I should do.