THANK YOU - EVERYBODY !
My main point is not whether it's affordable (and, actually, it is... for me) but simply the fact that it had never been charged there, before (I'd been there before 12h00, the day before, as well as @ 12h30 as well as between 14h30 & 16h30... I usually go shortly after noon or in mid-to-late afternoon, and have been there almost 10 times, now...
I had originally thought I'd come home, read these replies FIRST... and THEN decide whether or not to ever go back there, again... but I was hungry, today, and so I dropped in: Nobody whom I'd already gotten to know on the waitstaff was working, there, today...
I ordered and ate EXACTLY what I had there the last time (when this instance occurred, last week) and I also went at EXACTLY the very same time, again.
THIS time, the person waiting on me was a man whom I'd seen there, before, but he had never waited tables in my presence. The 3 regular waiters (and the more usual cashier) seemed to not be working, today (although the regular cook was).
I was NOT charged the table service charge this time - and the items and timing were identical to the previous occurrence, except for the day-of-week. There are some local restaurants, here, which charge different prices depending upon which day of the week it is ('tenedor libre' menu, however) and this is based upon supply-and-demand and makes perfect sense to me and probably to anybody; however, THIS place has a set / fixed menu, posted in the window, and it has NO advertising, anywhere, regarding the table service charge. Now, that I know the menu's particulars and what I like that they offer, I usually order there without any use or benefit of the menu. I did that last time as well as today. I also already know the prices... and I check if they've changed from the window. Nothing in THIS place has gone up since I arrived in early October. ANOTHER very nearby restaurant has increased their prices but not this place.
Every other thing about today was identical to last week's incident - but as with every OTHER time when I'd ever been in there before the last time... there was NO TABLE SERVICE CHARGE today.
NOW: I THINK the waiter was really simply trying to pull a fast one on me...
As I originally stated, I have the capacity to make myself very well understood, in Spanish, but my limitation comes at the point of arguing... so what I got in response was more or less a 'shrug of the shoulders' - yes - but I couldn't press my point at the time... or, at least, I felt that I couldn't.
So, NOW, I think that if / when I return, again, in future (and I probably will because I pass the place usually once or twice, daily, at minimum... and it's in the centre of town by the train station, here...) I will either avoid that waiter, or I WILL BRING IT UP WITH THE MANAGER, next time.
I just wasn't sure if I had the right idea about it, so I wanted to check with all of youse!
MUCH OBLIGED,
Paul