Wills with no probate in Arizona

Location: Arizona.

I am a US Citizen and I currently live outside of the USA in the UK however my family is still in Arizona. We have recently had a family member pass away who put everything in a trust, to the extent that his will did not go through probate, however the executor of the will & trust is claiming that no-one other than her and one other family member has ‘permission to read the will’. As such we have no idea if/how we can challenge the will as we can’t get a copy of it through the executor, or through the court, and probably don’t have the grounds to contest it in court based on what we’ve been reading.

Is there any way we can get a copy of the will? Or is there a valid way we can contest it in court?

Thank y’all in advance.