Are you sure it's not working ?
Or is it not compatible with your make of garage door ?
I ordered this too having just put in a wider door especially for the i-Pace (wouldn't fit through the old doors without retracting the mirrors).
Turns out the manufacturer I chose for the doors (UK) use electronics which are incompatible with the homelink system (USA).
Checked with JLR, Homelink and the door OEM and they all agree they won't work together without some kind of intermediate box of tricks translating between the mutually incompatible standards.
I had naively thought that any remote device could be programmed to talk any door, especially brand-new kit at both ends, nothing antique or outdated, and had not investigated before buying either.
The OEM said they could come and retro-fit somthing that would work for £1000 or so.
I just keep one of the remote fobs in the car !