Tried to have a call with the customer but the call ended with them basically saying I want this or else! The business is worth a lot and customer threatened to take the business away. I’m about to go on PTO, my supportive boss is leaving the company next week and so i have escalated to my interim boss who I’ve been told basically not to trust. Unfortunately it’s one of those situations I can’t guarantee I can give them what they want and have suggested suitable alternatives! So much for going on holiday and distressing! Should I just leave in hands of interim boss???