Mañjarī bhāva sādhakas desire only Śrī Rādhā’s service, and this service automatically includes the service of Śrī Kṛṣṇa. Actually, there are no greater servants of Kṛṣṇa than the mañjarīs, for they serve Him with the ingredient of mādanākhya mahābhāva!
Their greatest service paraphernalia in Govinda’s service is their Śrī Rādhārāṇī, who is dearer to them than millions of life airs. Therefore, although they have no separate desire to serve Govinda, Govinda personally blesses them with devotional service.
This is suggested by the use of the words nija dāsya, own service.

[In his anxious prayers] Śrīpāda Raghunātha das Goswamipad nourishes a strong desire to be showered by Śrī Rādhārāṇī’s devotional service. From this it is understood that Śrī Rādhārāṇī’s service is such a wonderfully tasty and nectarean thing that it fills Śrīpāda’s heart with eagerness.

Śrī Rādhā’s nectarean delicious service is the highest step that the sādhaka can ascend to on the staircase of relish in the kingdom of bhāva sādhana.

Śrīpāda Prabodhānanda Sarasvatī has written:

rādhā nāgara keli sāgara nimagnālī-dṛśāṁ yat sukham.
no tal leśa lavāyate bhagavataḥ sarvo’pi saukhyotsavaḥ
(Vṛindavana Mahimamrita)

“The festival of bliss of all devotional service that is rendered in the kingdom of God is just a drop compared to the transcendental bliss the fish-like eyes of Śrī Rādhā’s maidservants experience when they dive into the ocean of Śrī Rādhā-Mādhava’s lilas.”