How do I retrieve my Apple Cash after iPhone stolen and erased?

how to retrieve my Apple Cash using an up date Mac ?

It is not possible.

It is also not possible to transfer the money, because you need an iPhone, see -> Transfer money in Apple Cash to your bank account or debit card

Transfer money in Apple Cash to your bank account or debit card - Apple Support (IN)

Get more help ⤵️

Call Apple in your region see: Contact Apple for support and service

Contact Apple for support and service - Apple Support

Contact Apple Support -> Get Support (apple.com)

Is not possible, see Set up Apple Cash -> Set up Apple Cash - Apple Support

• What you need -> Have a compatible device with iOS 11.2 or later or watchOS 4.2 or later. 

iPhone 5 is an outdated iPhone(September 21, 2012), can’t be update to a higher iOS.

iOS 10.3.4 is the latest iOS update -> released July 22, 2019.