This idea was brought up by several posts earlier (see 1,2) and Vincent has even posted

a partial solution, but apparently it hasn't yet made it to this page.

The proposal is to have the possiblity to handle more than one SIMs from

a single account. This would be useful for companies, families, couples

and any other groups, if handling of the SIMs' administration/finances

is performed by one person.

The point is not necessarily to have only a single account for the SIMs,

i understand that at the moment the system requires the creation of an

account for each SIM.

The point is much more to have the possibility to define a master account from

which you can access relevant settings of all the SIMs within the associated pool.

Not only to top-up (this is not a problem as you can top-up any number through

the giffgaff pages) but also to activate/inactivate  auto top-up or set speding limits, etc.

Another important aspect of a company/family pool os SIMs would be to handle the

credits more flexibly: to have the possibility to transfer credit from one SIM to

the other.  Tthere was some discussion about  implementing some form  of credit

transfere on giffgaff (1,2) - in my opinion company/family SIM pools would be a good

argument to push such a feature and also an excellent context for the development

and testing.