Cabify (and more generally getting around by taxi) was one of the most frustrating aspects of our recent visit to Buenos Aires.

- As mentioned earlier in the thread, you cannot create an account unless you have a local mobile number in the region. It says it is sending you a code by SMS but that is not delivered (we tried both US and UK phones). I complained to their help desk and just got sent around in circles over and over again with no real assistance at all
- So then we went and got a local mobile number, which involved 30 minutes in a phone shop while they registered us through an incredibly complex process; then we were able to use Cabify
- Cabify does a credit card hold to verify the account then It looks ok .... but ...
- The first time we came to make an actual booking, it blocked our account with a "48 hour" turnaround time to fix it -- and requested ID docs etc
- It was fixed a day later. So then we made a successful booking out into the suburbs ... but ...
- We got stranded there because it then blocked our account a second time, again asking for ID docs and quoting 48 hours to fix.

At this point we gave up and took the bus (US $0.05) which was a very straightforward experience as we had already purchased a SUBE card.
For transport to the airport we used Tienda Leon who were OK on one journey; on another they called us to say they had no cars available.

Cabify are absolutely not fit for purpose, for foreign travellers. Make sure you prepare for alternative options.