Adobe Sign has stopped working - partially

Hi

I have taken this issue to Adobe Customer Support but they are unable to help (as they don't support mobile apps.) and they referred me to you, so I hope I can get some help.

I have 2 Adobe Sign accounts, one being a paid licence for a committee for which I regularly submit documents for esignature and one a personal/limited account.

I predominantly use iPhone & iPads as my devices of choice but also have an infrequently used Windows 10 laptop. Adobe Sign is installed on all devices.

The majority of documents created so far have been on my phone, less so on iPad and lesser still on Windows. All have operated well and without issue until about 10 days ago, when, for seemingly no reason, I was/am unable to create documents on my paid account.

This ONLY happens on my paid account and ONLY on the mobile app on the Apple devices. It works fine on Windows and my personal account works fine on all devices, it’s just the paid account on iOS!

I can login to the account with no problem (apart from having to key my password in twice). I can see all my historic files but I cannot create anything! On login I am brought to the acrobat DR suite. I have the option of selecting from a number of  apps (Send for Signature or Fill & Sign etc) or to ‘Get Apps’. But when I select anything .. nothing happens. I just stay put going nowhere. Sign won’t lunch .. apps can’t be installed .. nothing ..!

I have of course deleted, reinstalled apps & rebooted devices on multiple occasions. No change.

Does anyone here recognise these symptoms and able to proffer me some much needed advice to help me sort this increasingly frustrating and time consuming problem?

Thankyou