We cannot be held liable for poor results from badly exposed rushes. There is only so much that we can do to grade your footage, and blown highlights and crushed shadows cannot always be recovered. We will always prioritise useful data, if it is available to us in the file you upload. It stands to reason, however, that we will not be able to resurrect detail in areas of an image where no detail was there to begin with.
If your white balance is far off, it means we have to push the data much further to bring it in to balance. Some acquisition formats are better than others at being pushed this far, such as 10-bit 4:2:2 codecs. If the data in your uploaded video isn't sufficient to accommodate large changes to temperature and tint, then we may not be able to correct it.
High quality codecs like Pro Res can never add in data that wasn't there to begin with. For example, an 8-bit acquisition format, like XAVC-S, will still contain 256 shades per channel once transcoded to a 10-bit codec. We will always make the best of your footage, but we are bound by the limits of your cameras recording format.