In winter time I wear long boots with 2 inches heels after making wudhu. Can I simply wipe over them to renew my wudhu as removing them in public places is a hassle? One of the scholars told me that since they are high heels it should be taken off since they are not flat like khufs.

Contemporary scholars have said that it is allowed to make Salah in high heels.[1] As such masah on those types of shoes is allowed.

However, it is worth mentioning that some scholars like Shaykh Uthaymeen are of the view that it is makrooh to wear high heels because of health issues associated with that. If someone wears high heels due to necessity, then Inshaa’ Allah that would be fine.

And Allah knows best.

 Reference:

[1] http://islamqa.info/en/181719