Newman discusses ("Into the Storm") the supposed visit to Lobo's bank here:
"The visit by Veciana's notional [i.e., theoretical] Phillips to Lobo's bank in mid-September 1959 would have taken place at the very moment the Havana station and CIA HQS were struggling to ensure that the work of the real Phillips for the CIA would not come to the attention of Cuban intelligence. Lobo's bank and counterrevolutionary associates - including Veciana - had been under tight surveillance for quite some time. Only a few month later, Che Guevara summoned Veciana to two meetings in which he attempted - unsuccessfully - to recruit Veciana to penetrate and report on Lobo's anti-Castro activities."
I was not aware - and his source for this is thin - that Veciana himself was under surveillance at the time of the supposed Bishop meeting. Newman also says that Lobo vouched for Veciana's bona fides in late 1960 when he, Veciana, appealed to the US Embassy for a visa to go to the US. Which raises the question: If Veciana was working for Phillips then why did he need to go to Lobo to prove his bona fides to obtain a visa? Wouldn't Phillips do that? That is, vouch for him?