Fix(Availability): Currency codes returned in fees when the provider does not
Closes IAXI-151
Sellers at 2022-11-24:
- OTS Globe - [AXI]
- Robert Arrigo and Sons - [RAR]
- AXIS/MTS Alemania - [AXL]
- AXIS/MTS España - [AXT]
- Axis UK - [AXK]
- AXIS/MTS Dubai - [AXD]