I don't know if they are connected but it doesn't surprise me. OD needs to be rebranded as it's no longer just owners. And certainly not direct in some cases. And yes I am guilty of this myself as I advertise two properties on there for other people and manage their bookings.
When you do a search on OD at the bottom of the properties they deem suitable for you is a list of advert for all sorts of other holiday companies. Is this where you saw it?
OD are owned by HA.
Hoseasons by Wyndhams.
No connection just a third-party ad.
"Write something, even if it's just a suicide note"
"There is no human problem which could not be solved if people would simply do as I advise"
"As for my amnesia, I've had it as long as I can remember"
Real name: Steve
Gender: Male
What you need is Adblock Plus Seriously though, I never get ads/pop-ups. Well not strictly true - I do get them on my iPad as the blocker doesn't seem to work as well on iOS.