Bacardi info needed
 

We are planning to visit Bacardi Distillery on a Wednesday.
1) What time that day is best to book a Legacy tour--when it is not especially crowded (with lots of ship passengers, etc.)?
2) How early before the reserved tour time you suggest in question 1 above should I book a ferry from Old San Juan to Catano, arriving in plenty of time for our distillery tour, taking into account walking time from the ferry on Calle Palo Seco aliong the coast to Casa Bacardi (we are active walkers)?
3) Bacardi's website mentions a senior citizen discount with a promo code, but I cannot get any contact with them after days of trying to call and 2 messages via their website. Does anyone know that code?
TIA